<template>
  <view>
    <!-- 使用自定义的搜索组件 -->
    <view class="search-box">
      <my-search @click="gotoSearch"></my-search>
    </view>
    <!-- 轮播图的区域 -->
    <swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
      <swiper-item v-for="item in swiperList" :key="item.goods_id">
        <navigator class="swiper-item" :url="'/subpkg/goods_detial/goods_detial?goods_id='+item.goods_id">
          <image :src="item.image_src" mode=""></image>
        </navigator>
      </swiper-item>
    </swiper>

    <!-- 分类导航区域 -->
    <view class="nav-list">
      <view class="nav-item" v-for="(item,index) in navList" :key="index" @click="navClickHandler(item)">
        <image :src="item.image_src" class="nav-img"></image>
      </view>
    </view>

    <!-- 楼层区域 -->
    <view class="floor-list">
      <view class="floor-item" v-for="(item, index) in floorList" :key="index">
        <!-- 渲染楼层的标题 -->
        <image :src="item.floor_title.image_src" class="floor-title"></image>
        <!-- 楼层图片区域 -->
        <view class="floor-img-box">
          <!-- 左侧大图片的盒子 -->
          <navigator class="left-img-box" :url="item.product_list[0].url">
            <image :src="item.product_list[0].image_src" :style="{width: item.product_list[0].image_width + 'rpx'}"
              mode="widthFix"></image>
          </navigator>
          <!-- 右侧4个小图片的盒子 -->
          <view class="right-img-box">
            <navigator :url="img.url" class="right-img-item" v-for="(img,i) in item.product_list" :key="i"
              v-if='i !== 0'>
              <image :src="img.image_src" mode="widthFix" :style="{width: img.image_width + 'rpx'}"></image>
            </navigator>
          </view>
        </view>
      </view>
    </view>
  </view>
</template>

<script>
  // import { $http } from '@escook/request-miniprogram';
  export default {
    data() {
      return {
        swiperList: [], //轮播图数据列表
        navList: [], //分类导航的数据列表
        floorList: [], //楼层的数据列表
      };
    },
    onLoad() {
      // 在小程序页面刚加载的时候，调用获取轮播图数据的方法
      this.getSwiperList()
      this.getNavList()
      this.getFloorList()
    },
    methods: {
      // 获取轮播图数据的方法
      async getSwiperList() {
        const {
          data
        } = await uni.$http.get('/api/public/v1/home/swiperdata')
        // console.log(data)
        if (data.meta.status !== 200) {
          return uni.$showMsg()
        }
        // 为data中的数据赋值
        this.swiperList = data.message
        // uni.$showMsg('数据加载成功!')
      },
      // 获取分类导航数据的方法
      async getNavList() {
        const {
          data
        } = await uni.$http.get('/api/public/v1/home/catitems')
        // console.log(data);
        if (data.meta.status !== 200) return uni.$showMsg()
        this.navList = data.message
      },
      navClickHandler(item) {
        // console.log(item);
        if (item.name === '分类') {
          uni.switchTab({
            url: '/pages/cate/cate'
          })
        }
      },
      async getFloorList() {
        const {
          data
        } = await uni.$http.get('/api/public/v1/home/floordata')
        // console.log(data);
        if (data.meta.status !== 200) return uni.$showMsg()
        // 数据绑定之前，处理URL地址(双层for循环)
        data.message.forEach(item => {
          item.product_list.forEach(prod => {
            prod.url = '/subpkg/goods_list/goods_list?' + prod.navigator_url.split('?')[1]
          })
        })
        this.floorList = data.message
      },
      gotoSearch() {
        uni.navigateTo({
          url: '/subpkg/search/search'
        })
      }
    }
  }
</script>

<style lang="scss">
  swiper {
    height: 330rpx;

    .swiper-item,
    image {
      width: 100%;
      height: 100%;
    }
  }

  .nav-list {
    display: flex;
    justify-content: space-around;
    margin: 15px 0;

    .nav-img {
      width: 128rpx;
      height: 140rpx;
    }
  }

  .floor-title {
    height: 60rpx;
    width: 100%;
    display: flex;
  }

  .floor-img-box {
    display: flex;
    padding-left: 10rpx;

    .right-img-box {
      display: flex;
      flex-wrap: wrap;
      justify-content: space-around;
    }
  }
  
  .search-box{
    // 设置定位效果为"吸顶"
    position: sticky;
    // 吸顶的位置
    top: 0;
    // 提高层级，防止被轮播图覆盖
     z-index: 999;
  }
</style>
